FM 25-7 War Department Field Manual, Pack Transportation 1944-08-25
"The mission of pack transportation is to transport loads on the backs of animals over terrain which is difficult for or impassable to wheeled or track-laying vehicles. Its success depends largely upon the careful selection and training of personnel and pack animals. The employment of correct packing and march techniques is essential. The following topics are included in this field manual: selection and training of pack animals; Phillips pack saddles; packer's saddle (full-rigged); lashed loads; hanger and adapter loads; pack train (herded); pack transport with individually led animals; marches and bivouacs; and emergency methods of pack transport."
Digitized by the Combined Arms Research Library Digital Library, US Army Combined Arms Center. http://cgsc.cdmhost.com/cdm/